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Energy-efficient cooling and heating solutions for enhancing fresh concrete quality

机译：节能冷却和加热解决方案，提升新的混凝土质量

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摘要

Solid concrete components are used for the construction of airports, dams, tunnels, bridges and other infrastructural projects. Owing to their thickness, such elements can develop a high amount of hydration heat and thus internal stresses resulting in cracking even months after their installation. In addition, exceedingly high or low ambient temperature levels can obstruct the controlled curing of concrete in regions with extreme climatic conditions. This is why the temperature of the concrete needs to be controlled efficiently already during the mixing process in order to prevent cracking and, consequently, severe damage to the building or structure. Thus, construction contractors and concrete producers have to comply with increasingly tight temperature limits imposed by ever-stricter legislation enacted in the past 10 to 15 years as well as with increasingly demanding requirements in terms of the quality and structure of the concrete. At the same time, rising power prices make it necessary to increase the energy efficiency of temperature control systems continuously. One solution to this problem are modular systems that combine the use of ice, water and air in order to meet the demanding concrete temperature requirements while also avoiding energy-intensive cooling and heating methods, resulting in a more favorable energy consumption and carbon footprint.
机译：固体混凝土组件用于机场，水坝，隧道，桥梁等基础设施项目的建设。由于它们的厚度，这种元件可以发育大量的水化热量，从而产生内部应力，导致安装后甚至裂开。此外，非常高或低的环境温度水平可以阻碍具有极端气候条件的地区混凝土的受控固化。这就是为什么在混合过程中需要有效地控制混凝土的温度，以防止开裂，从而对建筑物或结构严重损坏。因此，建筑承包商和混凝土生产商必须遵守过去10至15年在过去10至15年中颁布的越来越紧张的温度限制，以及在混凝土的质量和结构方面越来越苛刻的要求。与此同时，上涨的电价使得必须连续增加温度控制系统的能效。该问题的一个解决方案是模块化系统，即结合使用冰，水和空气，以满足苛刻的混凝土温度要求，同时还避免了能量密集的冷却和加热方法，导致更有利的能耗和碳足迹。

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